NASA's Unexplained Files Season 4 Episode 3
A President's Close Encounter
Geysers are discovered on a frozen moon, and NASA redirects a probe on a daring mission to detect evidence of life. An unidentified object is spotted approaching a near-earth asteroid. A future president is an eyewitness to a UFO.
4 - 8Mars's Deepest SecretOct. 18, 2016- 4 - 7Mystery of the Invisible PlanetOct. 11, 2016
- 4 - 6Did Earth Have Two Moons?Oct. 04, 2016
- 4 - 5Curse of the Full MoonSep. 27, 2016
- 4 - 4The Earth Next DoorSep. 20, 2016
- 4 - 3A President's Close EncounterSep. 13, 2016
- 4 - 2Rise of the Planet KillerSep. 06, 2016
- 4 - 1Pluto's Stranger ThingsAug. 30, 2016
